Figure 4: Ecological niche of five relic shrubs in environmental space. | Scientific Reports

Figure 4: Ecological niche of five relic shrubs in environmental space.

From: Mapping the ecological dimensions and potential distributions of endangered relic shrubs in western Ordos biodiversity center

Figure 4

Niche were displayed in the two main axes of principal component analysis. Grey-to-black shading represents grid cell density of species’ occurrences (black being the highest density), the first dashed line represents the 50% of the available environment and the solid line represents the 100%. Last panel presents the contribution of variables for loading PCA_env axes and percentage of inertia explained by axes one and two.

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